body {
    font-family: 'Poppins', sans-serif;
    background-color: #f4f7f6;
    color: #333;
}
.container {
    margin-top: 50px;
    margin-bottom: 50px;
}
.card {
    border: none;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    overflow: hidden;
}
.card-header {
    background: linear-gradient(135deg, #007bff, #0056b3);
    border-bottom: none;
    padding: 30px 20px;
}
.card-header h4 {
    font-weight: 600;
    letter-spacing: 0.5px;
}
.form-control, .select2-selection {
    border-radius: 8px !important;
    padding: 10px 15px;
    height: auto !important;
    border: 1px solid #ced4da;
    font-size: 14px;
}
.form-control:focus {
    box-shadow: 0 0 0 0.2rem rgba(0, 123, 255, 0.15);
    border-color: #80bdff;
}
.input-group-text {
    background-color: #f8f9fa;
    border-right: none;
    border-radius: 8px 0 0 8px;
    color: #6c757d;
}
.input-group .form-control {
    border-left: none;
}
.input-group .form-control:focus + .input-group-text {
    border-color: #80bdff;
}
.btn-primary {
    border-radius: 8px;
    padding: 12px;
    font-weight: 600;
    letter-spacing: 0.5px;
    background-color: #007bff;
    border: none;
    transition: all 0.3s ease;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 123, 255, 0.4);
}
label {
    font-weight: 500;
    font-size: 14px;
    color: #495057;
    margin-bottom: 8px;
}
.select2-container .select2-selection--single .select2-selection__rendered {
    padding-left: 0;
}